After treatment of filaments



Filed March 8, 1932 SMN/nto@ wmf/vl 15 1,7 Karima/Herrmann.

Patented Aug. 8, 1933 AFTER TREATMENT F FILAMENTS Conrad Herrmann, Wuppertal-Elberfeld, Germany, assignor to American Glanzstoff Corporation, NewV York, N. Y., a Corporation of Delaware Application March s, 193.2, serial No. 597,510, and in Germany April27, 1931 6 Claims.

My present invention has to do with the vacuum, pressure washing, or other liquid treating of articial ilaments.

More specifically my invention relates to an apparatus for use in the washing, bleaching, de-

sulphurization, oiling, sizing, dyeing, drying, etc. of artificial laments produced in accordance with the wet spinning process.

One object of the present invention is to provide a mechanism which may be used in conjunction with the ordinary treating tanks now commonly used and which will result in a saving of time and labor.

Another object of the present invention is to provide a means which while labor and time saving as pointed out above, also acts to aid in the more efficient treatment of the iilamenta'etc.

Other objects will become apparent from a perusal of the following speciiication and a study KV of the accompanying drawing, which discloses an elevational cross section of my improved apparatus.

Ordinarily in the wet treatment, of artificial y filaments a series of superimposed spools are posi- 25 tioned above an opening in the bottom of the tank. In order to properly position these spools and to insulate the tier against leakage etc., the use of some type of gasket and much manual labor is necessary. These disadvantages disappear when my new device is used.

Referring now to the drawing, the spinning spools (l) containing the filaments are placed about the perforated pipe (3). This pipe is permanently fastened to the bottom (2) of a washing tank or a washing carriage. This pipe (3) provides the necessary support for a stack or tier of spools and serves as a means of conducting the pressure or vacuum applied to the spools. Each spool has a beaded edge (4), and the pipe (3) is provided with the following means in order that these beaded edges (4) may be held in liquid and gas-tight connection therewith. These means comprise soft rubber portions of tubing (5) which are'slid over the pipe (3). These portions of rubber tubing are each supported in the proper position by means of two caps 6 6 which are slid over the tubing from both ends in order to grip it. These caps 6 6 hold the tubing (5) pressed tightly against the perforated tube (3) so that a liquid and airtight junction is provided. The tubing is arranged in such a manner that a loose central position 5 is provided. This free portion of the tube (5) is so placed that it assumes a bellying position where the beaded edges (4) of the superimposed spools (1) meet. That portion of the pipe (1) which is covered by the rubber tube (5) need not be perforated. Between the outer surface of the'pipe (3) and the inner free portion of the rubber tube (5") either compressed air or some liquid supplied by hydraulic pressure, such as water, may be introduced by means of the feed pipe (7) and the openings (8). The pressureapplied need only be such'that a bellying of the portions 5 is produced. This pressure causes the portions 5 to press outwardly against theadjoining beaded portions (4) and thus form a liquid and air tight seal between them. It is obvious that in the event of the employment of pressure Washing the auxiliary pressure in the pipe(7), must be higher than the internal pressure of the washing water. It is to be noted that the portions 5 contact with the spools (1) only at the portions thereof which are unperforated.

The clamping ring (9) situated at the lower end of the tube (l) takes the place of a beaded edge for the lowermost spool to rest upon. Similarly, the screw cover (10) assumes a like duty at the top portion of the pipe.

In operation the following procedure is employed. After the washing apparatus is empty the valve (11) in the pressure water line and the valve (12) in the water washing line are both closed. The spinning spools to be washed are 85 placed around the pipe (3) in superimposed position. The valve (11) is then opened so that either air or some liquid under the iniluence of hydraulic pressure, such as water, is allowed to enter the pipe (7) and so pass through (8) and swell or 9D belly out the loose portions 5' of the rubber sleeves (5). In this way all of the packings are brought in tight contact with the beaded edges of the stacked spools. The valve (12) is then opened for the feeding of the washing water. After suiicient 9`5 washing water has passed through the spools, the valves (11) and (12) are closed, and the air or liquid remaining in the pipe (7) is allowed to escape through the blow-01T valve (13). Thus the rubber rings or tubes 5 assume theirV former position and the washed spools may be removed and other spools placed upon the pipe.

It is to be understood that although the foregoing discussion was specific to the use of water for the pressure washing of artificial laments, the apparatus may be likewise used for desulphurization, bleaching, reviving, oiling, sizing, dyeing, and even drying of the iilaments. In short, this apparatus may be used for any of the ,1 methods used in the after treatment of filaments.110

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. tervals throughout its length, flexible gaskets surrounding the said pipe at spaced intervals, and

inlets from the second named inlet pipe by means of which pressure may be applied Within the gaskets in order to swell them. y

2. In a device for use in the after treatment of artificial filaments, in combination, a bottom, a perforated tube rigidly secured thereto, a series of gaskets of soft rubber surrounding the tube at spaced intervals, and means whereby the said gaskets may be caused to expand.

3. In combination, anV upright perforated support, tubular in form, a series of spools arranged in superimposed position around said support, flexible coverings arranged to cover certain of the vperforations on said support, and positioned adjacent the meeting edges of the said spools, and means for supplying vfluid pressure to the perforations so covered that the flexible support will be caused to expand against and seal the said meeting edges of the spools.

4. A sealing means for use in the after treatment of filaments, etc.; comprising a perforated support and a flexible covering for one of the perforations therein, and a tube leading to the perforation so covered so that pressure may be applied through the'said perforation in order to expand the said flexible covering.

5. In combination, a perforated tube-like support for spooled filaments, etc.; a plurality of flexible coveringsl for said support, located at spaced points on said support, and tubes for the application of iluid pressure whereby pressure may be applied to the perforations covered by said coverings, and said flexible coverings may be expanded.

6. In combination, a perforated tube-like support for spooled laments and the like, a series of spools arranged in superimposed position around said support, a plurality of flexible coverings for said support located at spaced points thereon, and means for the application of iluid pressure whereby `pressure may be supplied to the perforations covered by said coverings, and said coverings may be expanded so that the meeting edges of the spools are secured against the passage of fluids.

CONRAD HERRMANN. 

